class Fish {
	int weight = 1;
}
class Lake {
	Fish fish;
	void setFish(Fish s) {
		fish = s;
	}
	void foodFish (int m) {
		fish.weight=fish.weight+m;
	}
}
public class E {
	public static void main(String args[]) {
		Fish redFish = new Fish();
		System.out.println(redFish.weight);
		Lake lake = new Lake();
		lake.setFish(redFish);
		lake.foodFish(120);
		System.out.println(redFish.weight);
		System.out.println(lake.fish.weight);
	}
}



